NVIDIA has released GeForce/RTX Spark Hotfix Display Driver 621.12 to address video playback freezes and temporary black screens affecting some GeForce RTX 50-series graphics cards and RTX Spark systems. Released on October 27, 2026, the optional update specifically targets display problems introduced by Game Ready Driver 621.01, which arrived on October 21.
The hotfix follows reports of black screens and video freezes that emerged after users installed driver 621.01. Affected users described videos freezing in browsers such as Google Chrome and Microsoft Edge, with some also experiencing interruptions in VLC Media Player. In certain cases, connected monitors temporarily went black for several seconds.
GeForce RTX 5080 owners were among those reporting the problem. NVIDIA acknowledged the complaints and requested diagnostic information from affected users before issuing the corrective driver.
According to NVIDIA’s official release notes, version 621.12 addresses four specific issues. The primary fix resolves video playback freezes and black screens occurring on some GeForce RTX 50-series GPUs and RTX Spark devices after installing driver 621.01.
The update also fixes a crash affecting Unreal Engine 5.8 when Ray Lighting Mode is configured to Hit Lighting. This correction is relevant to developers working with the engine’s ray-tracing features and is not identified as exclusive to RTX 50-series hardware.
Two additional display corrections are included. NVIDIA has addressed image corruption affecting RTX Spark systems when an HDMI monitor is connected through a StarTech Thunderbolt 3 to HDMI 2.0 adapter. The driver also resolves intermittent screen flickering on MSI N16 Flip laptops.
Hotfix 621.12 is based on NVIDIA’s existing Game Ready and RTX Spark drivers rather than being a new full driver release. NVIDIA classifies hotfix drivers as optional beta releases that undergo a shorter quality assurance process than standard WHQL-certified drivers.
The company uses these updates to deliver targeted corrections without requiring affected users to wait for the next regular driver package. NVIDIA states that waiting for the next WHQL-certified release remains the safer option for users who do not need the immediate fixes.
For GeForce RTX 50-series owners experiencing video freezes or display blackouts after installing 621.01, the new hotfix provides an official alternative to rolling back to an earlier driver. Users who have not encountered the listed problems do not need to install the optional update.
GeForce Hotfix Driver 621.12 is available through NVIDIA’s support website for Windows 10 and Windows 11 x64 systems. A separate Windows 11 ARM64 package is available for compatible RTX Spark devices.
The release primarily addresses stability issues rather than introducing new gaming optimizations or performance improvements. NVIDIA has not announced a specific date for the next WHQL-certified driver incorporating these corrections.
